Engine crank-case.



S. H. PAGE.

ENGINE CRANK CASE. APPLICATION FILED o'scm. 191a.

Patented May 15, 1917.

I JNVENTOR. 1W BY ATTORNEYS WITNESS m: Nam-us rzrsns cc FMOTD-LV7ND.. wAsmmmm a c.

STANLEY H. IPAGE,

\ ici OF SAN FRANCISOQCALIFORNIA, ASSIGNOR TO UNION GAS ENGINE COMPANY, OF OAKLAND, CALIFORNIA, A CORPORATION OF CALIFORNIA.

ENGINE CRANK-CASE.

To all whom it may concern:

Be it known that I, STANLEY H. PAGE, a citizen of the United States, residing in the city and county of San Francisco and State 3 .of California, have invented certain new and p in Engine Crankuseful Improvements Cases,l of which the following is a spec fica tion.

The present invention relates to a base or crank case for supporting the cylinders and an internal combustion engine, particularly that type adapted for use in connection with aeroplanes.

The invention has for its principal objects to provide an enginebase or crank case in the form of a casting which is particularly adapted for use in connection with aeroplane engines, and is constructed in such manner. with interconnected and braced walls as to provide maximum strength with minimum weight and in which the destructive effects causedby weaving or working is eliminated.

iVith the above jects in View, the novel construction mentioned and other obinvention consists of the and combination of parts hereinafter described, illustrated in the acportion, size and companying drawings. and pointed out in the claims hereto appended, it being understood" that various changes in the form, prominor details of construction maybe resorted to without departing full length of from the spirit or sacrificing any of the advantages of the invention.

To more fully comprehend my invention, reference is directed to the accompanying drawings, wherein- Figure l is a view in top plan of a portion of anengine crank case, disclosing the preferred embodiment of my invention.

' Fig. 2 is a view in side elevation.

Fig. 3 is a cross sectional view, taken on the line 3-3 of Fig. 1, and viewedin the direction of the arrows.

Referring more particularly to the several views of the drawings, wherein like characters of reference designate corresponding parts, 1 and 2 indicate respectively the outer and inner parallel spaced crank case side walls which extend longitudinally for the the case, and said walls are inwardly inclined at their upper. ends and are connected by a top wall 3 which provides a base or support for the engine cylinder, and which is provided at intervals Speificationof Letters Patent.

7 Patented May 15, 191?.

Application filed December 11, 1916. Serial No. 136,155.

with suitable cut-outs or openings 4 through which connected rods (not shown) are adapted to operate.

Suitable vertical webs 5, disposedv at right angles to the side Walls, connect the inner and outer side walls of the opposite sides of the crank case 1 and 2 at intervals throughout their length, preferably on a line midway between the openings 4, as in Fig. 1. The lower edges of the inner and outer side walls 1 and 2 are connected by abottom wall 6', and at intervals throughout the length of the said bottom neath the webs 5, the same are connected by transversely extending webs 7, the webs 7 preventing the spreading of the opposite side walls and are formed preferably in their center with an upwardly curved seat 8 for receiving the upper half of the bearing for the engine crank shaft To assist in supporting the web 7 and to unite the same with the upper or top wall 3, suitable vertically disposed tubular pillars 10 are providec, said pillars being formed at opposite sides of their outer surfaces with reinforcing ribs 11, and are preferably ar' ranged in pairs with the lower ends disposed one at each side of the seats 8, and the upper ends at the opposite sides of the top wall 3;

each opening 4 and preferably in a line with the webs 5.

his upper open ends 12 of the pillars are adapted to receive taps for securing. the cylinders in place on the upper wall thereof, and the lower ends 13 are designed'to receive suitable taps for securing the lower half of the crank he outer walls 1 are preferably provided between the webs 5 with openings 14 surrounded by a machined flange 15 on which may be removably positioned a cover'or plate (not shown) when it is desired to employ the compartments A for storage purposes. The-b the longitudinal which are provided with openings 17 for receiving securing bolts (not shown). Endwalls 18 connect the ends of the side members 1 and 2.

wall, preferably at points beshaft bearing housing in position.

have also provided a case having a plurality of compartments which may be closed and used as reservoirs, or, when left open, present large heat radiating surfaces.

Having thus described my invention, what I claim as new and desire to protect byLetters Patent is 1. An engine cylinder supporting base and crank case comprising interconnected side and end walls, the side walls each consisting of a plurality of spaced wall members, webs connecting the wall members of the respective side walls at intervals, a ported top wall connecting the upper portion of the side walls, and a plurality of webs connecting the lower portion of the side walls at intervals. I v

2. An engine cylinder supporting base and crank case comprising interconnected side, top, end and bottom walls, the side walls being inwardly converged at their upper ends and each consisting of a plurality of parallel spaced wall members, and a plurality of webs connecting the members of the respective side walls at intervals.

3. An engine cylinder supporting base and crank case comprising interconnected side, top, end and bottom walls, the side walls being inwardly converged at their uper ends and each consisting of a plurality of parallel spaced wall members, and a plurality of webs connecting the members i of the respective side walls at intervals and extending vertically for the full width thereof and disposed at substantially right angles thereto. a

4. An engine cylinder supporting base and crank case comprising interconnected side and end walls, the side walls con verging toward their upper ends and each consisting of a plurality of parallel spaced wall members, a plurality of vertically disposed webs connecting the membersof the respective side walls at intervals, a ported top wall connecting said side walls at their upper ends, a plurality of transverse webs connecting the side walls at their lower ends, and a plurality of vertically disposed pillars connecting each of said last mentioned webs with said top wall.

5. An engine cylinder supporting base and crank case comprising interconnected side and end walls, the side walls converging toward their upper ends and each consisting of a plurality of parallel spaced wall members, a plurality of vertically disposed webs connecting the members of the respective side walls at intervals, a ported Copies of this patent may be obtained for top wall connecting said side walls at their upper ends, a plurality of transverse webs connecting the side walls at their lower ends, and a plurality of vertically disposed tubular open ended pillars connecting each of said last mentioned webs with said top wall, said pillars providing a means for connecting the engine cylinders and the cam shaft bearing housing to said crank case.

6. An engine cylinder supporting base and crank case comprising interconnected side and end walls, the side walls each consisting of a plurality of spaced wall members, a plurality of vertically disposed webs connecting the members of the respective side walls at intervals, a ported top wall connecting said side walls at their upper ends, a plurality of transverse webs connecting the lower ends of opposite side walls at intervals, and each provided with a bearing receiving recess, and a plurality of vertically disposed tubular pillars connecting each of said last mentioned webs with said top wall, said structure being in the form of a single unit casting.

7. An engine cylinder supporting base and crank case comprising interconnecte side and end walls, a ported top wall connecting the side walls at their upper ends, the side walls each consisting of a pair of spaced wall members, vertically disposed parallel spaced webs connecting the members of said side walls at intervals, and a plurality of transverse webs connecting the lower edges of the opposite side walls at intervals and said webs arranged in line with the first mentioned webs.

8. An engine cylinder supporting base and crank case, comprising a single unit casting having interconnected side and end walls, a ported top wall connecting the upper portion of the side walls, said side walls consisting of a plurality of parallel spaced wall members, the outer wall member of each side being provided with a suitable opening, a plurality of webs, one connecting the respective side wall members intermediate the openings in said outer wall members, whereby an open chamber is provided in the crank case side wall.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

STANLEY H. PAGE.

Witnesses:

O. H. FISCHER, GEO. W. EMERSON,

five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

